百合新品种兰州百合2号的选育

A New Lily Variety—‘Lanzhoubaihe No.2’

兰州百合2号是从兰州百合栽培群体中优选出的一批自然变异单株,经过复选、组培快繁、品种比较试验、区域试验及生产试验选育出的优良品种。植株生长势强,鳞茎口杯形,商品百合单个鳞茎质量200～280g。鳞片长,包合紧实,色泽洁白,肉质肥厚、细腻,味极甜美,纤维少,蔗糖8.75%,淀粉11.44%,蛋白质3.26%,脂肪0.14%,钾0.36%,锌0.39%,VB2含量1000mg·kg-1。每667m2产量1800～2500kg。抗灰霉病、疫病和枯萎病,适应性较广,在兰州及周边海拔1500～3000m的山地均可栽培。

‘Lanzhoubaihe No.2’was bred from spontaneous mutant plants in Lilium davidii var. unicolor（Hoog）cotton cultivar population by several years systemic selection, micro propagation and compare appraisement, regional and production test. Its plants growth is vigorous. The bulbs are of cup type. A single lily bulb is 200-280 g at mature period. Lily bulb is scale length and compact with white color. Its flesh is thick and delicate with sweet taste and less fiber. The contents of sucrose, starch, protein content, fat, kalium, zinc and VB2 were 8.75 %, 11.44 %, 3.26 %, 0.14 %, 0.36 %, 0.39 %, 1 000 mg·kg-1, respectively. Its yield is 27.0-37.5 t·hm-2. It has resistance to gray mold, Phytophthora capsici, Fusarium wilt and wide adaptability. It can be cultivated at Lanzhou and nearby mountainous areas with altitude above 1 500-3 000 m.